在合成苯酞类化合物时,正戊酸是参照文献用醇制备羧酸的方法进行制备。我们现拟用正戊醇来制备正戊酸。首先用加热至沸的浓硝酸氧化正戊醇,但得到的是比所用醇少一个碳的正丁酸。我们查阅了有关文献,未发现此类报道。我们又用正丁醇、正己醇和正庚醇为原料,进行了同样的实验,均得到了降解产物,见表1。这些产物已经。~1HNMR 鉴定。 In the synthesis of phthalides, n-pentanoic acid is prepared by reference to literature methods for the preparation of carboxylic acids with alcohols. We now intend to use n-pentanol to prepare n-valeric acid. First, n-pentanol is oxidized with concentrated nitric acid heated to boiling, but n-butyric acid is obtained which is one carbon less than the alcohol used. We reviewed the literature and found no such reports. We also n-butanol, n-hexanol and n-heptanol as raw materials, carried out the same experiment, have been degradation products, shown in Table 1. These products are already. ~ 1H NMR identification.